Which component of the nervous system must be preserved to ensure safe mealtime in Parkinson's disease?

Which component of the nervous system must be preserved to ensure safe mealtime in Parkinson's disease?

• A. Sympathetic nervous system
• B. Autonomic regulation of swallowing
• C. Olfactory nerve function
• D. Optic nerve function

Answer: (B)

The key idea is that safe swallowing with meals relies on the body's ability to coordinate saliva management, airway protection, and esophageal transit, all of which are helped by proper autonomic regulation of swallowing. In Parkinson’s disease, the motor aspects of swallowing can be impaired, leading to risk of aspiration; when autonomic control of swallowing remains intact, saliva production and the smooth progression of the swallow through the pharynx and esophagus can support safer eating. The autonomic component specifically involved in swallowing ensures these secretions and smooth muscle actions are coordinated during a meal, which is crucial for preventing choking. The other options don’t directly influence the swallowing process: the sympathetic nervous system is broader and not the critical factor for safe mealtime swallowing, and the olfactory and optic nerves are unrelated to swallowing or airway protection.

The key idea is that safe swallowing with meals relies on the body's ability to coordinate saliva management, airway protection, and esophageal transit, all of which are helped by proper autonomic regulation of swallowing. In Parkinson’s disease, the motor aspects of swallowing can be impaired, leading to risk of aspiration; when autonomic control of swallowing remains intact, saliva production and the smooth progression of the swallow through the pharynx and esophagus can support safer eating. The autonomic component specifically involved in swallowing ensures these secretions and smooth muscle actions are coordinated during a meal, which is crucial for preventing choking. The other options don’t directly influence the swallowing process: the sympathetic nervous system is broader and not the critical factor for safe mealtime swallowing, and the olfactory and optic nerves are unrelated to swallowing or airway protection.